A Cheat-proof Rational Secret Sharing Scheme
A Cheat-proof Rational Secret Sharing Scheme
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作者：
Yongquan Cai;Xiaofeng Ren
In order to prevent rational participants cheating during the secret sharing process , the extensive form game theory was introduced to the secret sharing scheme .The dealer distributed several sub-secret shadows instead of the secret shadows to each participant, from which a multi-round game model was constructed to simulate the secret sharing process. The designed game strategies made rational participants not distinguish which round was the last one of the game and have no incentive to cheat. It ensures all participants could receive the secret, realizing the fairness. Furthermore ,compared with prior rational secret sharing schemes which assumed the secret shadows must be broadcasted simultaneously, ours is capable of achieving over standard synchronous channels, which is more practical.
